Diffused-heat-radiation chamber for home cooking and baking



D. GUELBAUM.

DIFFUSED HEAT RADIATION CHAMBER FOR HOME COOKING AND BAKING. APPLICATION FILED MAY-25,192].

1,41 1,274, Patented A r. 4; 1922 fa s II 5 NVENTOR.

DAVID GUELBAUM. or sYnacusnj YORK,

DIFFUSED-HEAT-RADIATION CHAMBER Ion HOME 'cooxme AND BAKING.

To aZZ whom it may concern:

Be it known that 1,.DAVID GUELBAUM, a

citizen of the United States, and a resident.

of Syracuse, in the county of Onondaga and State of New York, have invented a certain new and useful Diflused-Heat-Radiation Chamber for Home Cooking and Baking, of which the following is a specification.

This invention of'adiffused heat radiation chamberv for home cooking and baking has for its object better home cookingand' baking with much saving in time and fuel,

by means of diifused heat transmission within a closed insulated chamber,.with no contact of the food container with outside air or combustion gases, and with the vapor outlet made adjustable. And this present patentapplication forms an extension and supplement to my previous patent application for adiffused heat radiation apparatus or oven, filed April 18, 1921, Ser. #462,371, the present patent application differing from the previous one by various simplifications, having for their purpose to make its utilization general and accessible to every home.

My invention comprises the above novel features, embodied in combinations and constructions, as hereinafter set forth and claimed, and as shown on the accompanying drawings, in which like characters designate the same corresponding parts in all the views.

. the outer side-surface of the frying pan is surrounded by a light sheet metal jacket fitted to it, composed of two halves, connected together by small screws. The upper part 2 consists of a double flanged pan; the inner flange 3 fits the top of the frying pan, as shown, while the outer flange 4 fits the bottom flange 12 of the dome 8, or the similar bottom of any intermediate extension ring or compartment that may be inserted between the dome and the frying pan, such Application filed May 26,

Specification of Letters Patent. I y: Patented Apr 4,

1921. Serial No. 472,649.

as used in my said previous patent applica-' tion.

To this outer flange 4'18 attached with screws, as shown, the lower part or beveled shield 5, the bottomof which is fastened 1 to the. bottom of the fr ing pan.(screws not shown). The upperv ange 4 is notched out at 6 to clear the handle 'Zof the frying pan.

The air space lnsidefthe jacket-may be left empty, or may be filled composition Inside the frying or grating 11, made up of light metal strips notched in half inhalf. :This screen rests on up. with insulating the tapered sides of the-frying pan,zand is' the sameas used in my said previous patent application, serving to prevent direct contact with the-fryingpan bottom. 1

Ontop ofthe heat absorbing frying pan with its .insulating :jacket and'' screen is placed the dome 8 with its bottom flange l2 the washer 18 between to take up the fric-- tion.

Above the flange 19 the nozzle i's provided with several longitudinal slots 15' for the vapor outlet. Above these slots the nozzle is closed by the screw plug 9. I

Aroundthe nozzle abovethe flange 19 is fitted the rotating valve 10, by which the pan is placed the screen vapor outlet slots 15 can be closed or opened as much as desired.

The space between the dome 8 and the jackets 13 and 16 is filled up with heat insulating composition.

The dome is provided with the two handles 17, as shown on Figs. 1 and 2.

The dome hereshown differs from the dome used in my said previous patent ap-' plication in the following features:

1. Its top is spherical instead of conical, for better radiation.

2. It hasno air inlet holes at the bottom for hot air circulation.

3. It has no interior hot air circulation jacket and no thermometer on top, but a screw plug closing the top nozzle.

The vapor outlet regulating valve 10 is the same as used in my said previous patent application.

The interior of the insulated dome 8,iplus a ,sp'laeedzover any fire or burner, absor s the intense:.-heat, Which-.-the whole chamberbeing thoroughly xiirsuiated-spreads without lossi-owr :the interior metal surface of the chamber'andds'wholly transmitted by dififused radiation to the food container, simultaneously and uniformly all over its surface.

The s evaporation .o'r*:ebullition i that is to take place is regulated by the vapor outlet valve10, which may be closed on opened as amuch as desired.

*As ex-periment sh'ows, heat transmission by diffused radiation to a colitalner'within a closed (thoroughly insulated =radiation chamber, is -more rapid and :penetrating a'than would havetakenpla'ce by direct open contact of-b'uta portion ofthesurface of the sames'container with the-high temperature combustion ::gases. i

After the cooking or baking'has taken place" for a certaininterval oftime, the heat 7 may be cut oil", :and-thefrying-pan withthe dome placed over an asbestos or other in sulatingpad,andtheheat is thus preserved for 'ma'ny'hours, the same as in a, tireless cooker.

'What 1 claim is:

1. A diffused heat radiation chamber,eomprising an insulated spherically shaped pan provided with a screen inside and with an attachable insulating j-ackettoutside andsupportingth'e fiange of *said dome, sub'stan domeaflangecbat;the bottom, a frying tia-llfy -as' and ifor the purpose specified.

2. A diffused heat radiation chamber, comp'risi'ng'an insulated domehaving a slotted nozzle on top closed' by a screw plug and. provided with a vaporoutlet regulating valve an'd having a= flanged bottom made to fi't t-heitopof any-frying pan,a frying pan supportingzsaid dome and provided with an attached insulating jacket, substantially as and' for thepurpo'se setzfo'rth.

"3. "Adifi'u'sed heat radiation chamber,rcomprisingan insulated dome with a vapor out let' ontop -and a flanged bottom, and a fryiirgigpan provided'with a carrier screen inside and an insulating jacket .outside made in twohalves joined together and support inglthe bottom-flange of said dome,-substantially: as and for the purpose described.

%In testimony where'of,'-I have hereunto signed my name :at Syracuse, in thecounty otQnonda-ga, and'State' of New Yo'rk,this 24t'l1'day of May, 1921. P

. -DAVID GUELBAUM. 

